Crime in Western Australia is fought by the Western Australia Police and the Western Australia court system.
As at December 2004, Western Australia recorded lower rates than most other states in Australia for violent offences, but was the highest State for burglary in 2003. In 2003 the prison population increased by 3.4% with a similar increase in 2004.
From 2007–2008 a total of 84 homicides, 3,903 sexual assaults, 22,708 assaults and 1,849 robberies were recorded in Western Australia with a total of 33,890 offences against the person being recorded.
In the same time frame a total of 39,482 incidents of burglary, 82,963 incidents of theft were recorded with a total of 177,846 offences against property being recorded.
In 2008–2009, the chance of being a victim of physical assault in Western Australia was 3.8%. This is compared to the highest, the Northern Territory, with a rate of 5.7% and the lowest, New South Wales, South Australia and Australian Capital Territory, with a rate of 2.8%. The offender rate in Western Australia for Assault is 2199.2 offenders per 100,000 people, compared with the highest, the Northern Territory, which was 4,832 offenders per 100,000 people and the lowest, the Australian Capital Territory with a rate of 1,096 per 100,000 people.
In 2008–2009, the chance of being a victim of a break-in in Western Australia was 5.1%. This is compared to the highest, the Northern Territory, with a rate of 7.7% and the lowest, Tasmania, with a rate of 2.6%.
A total of 68 homicides, 3,753 sexual assaults, 22,869 assaults and 1,862 robberies were recorded in Western Australia this year with a total of 34,492 offences against the person being recorded. In the same time frame a total of 36,364 incidents of burglary, 86,487 incidents of theft were recorded with a total of 169,263 offences against property being recorded.
Australian Bureau of Statistics figures for 2009/10 showed that police action was taken against 2072.1 people per 100,000 head of population in WA.
In 2009–2010, the chance of being a victim of break-in was 5.2%.
A total of 76 homicides, 3,246 sexual assaults, 22,394 assaults and 1,70293 robberies were recorded in Western Australia this year with a total of 32,922 offences against the person being recorded. In the same time frame a total of 30,043 incidents of burglary, 73,215 incidents of theft were recorded with a total of 143,844 offences against property being recorded.